Door latch and lock mechanism



` 1 Y 1 61s 344 Feb. 22, v927. A J. KOPP DOOR LATCH AND Locx MEGHANISMFiled Aug. 24. 1925 0 3 f Q o C) s@ f c //7 72 7 ,Z/

, www m Patented Feb. 22, 1927.

UNITED STATES ANTON J. VKOPP, OF SAN FRANCISCO, CALIFORNA.

DOOR LATCH AND LOCK MECHANISBI.

Apiication'niea August 24. 1925. serial No. 51,909.

This invention relates to an improved lock for doors and other closures,the main purpose being to` provide a. simple, inexpensive vand easilyoperable lock which may be read- -ily and'cheaply installed and operatedwith greater ease and facility than the ordinary door lock. f

An object of the invention is to provide a door lock which includes alatch mechanism having operating levers instead of the ordinary knobs,one of which levers when grasped to pull the door open, will operate thelatch to withdraw the latch bolt, and the other of which levers whenVgrasped to open the door with a pushing movement, will likewise operatethe latch to withdraw the bolt, thus making for an easy and quickoperation of the latch to open the door. 1 l

Another object of the invention is to provide a lock and latch mechanismofthe vcharacter described which is of compact construction'andarrangement and ornamental as to appearance.`

A further object of the'invention is to provide'a novel operatingmechanism for withdrawing the bolt through theoperation of levers inplace of d-oor .knobs and spindles, which mechanism is ofsimple, durableand reliable construction and is notsubject to getting out of order orbecoming deranged.

With the above mentioned and other objects in view, the' inventionconsists in the novel construction and oombination'of parts hereinafterdescribed, illustrated in the accompanying drawing, *andV set Vforth in'the claims hereto appended, it being understood that various changes inthe Jform, proper-- tion, size and minor details of construction withinthe scope of the Vclaims may be resorted to without departing from thespirit or sacrificing any of the advantages ofthe invention.

Referring to the drawing:

Fig. l represents a. verticalsectional view ofgthe'lock mechanism ofthis invention shown as when applied to a door.

Fig. 2 representsk a horizontal sectional view of the lock mechanism. l

Fig. 3 represents a longitudinal sectional view of the mechanism takenat right angles to the view in Fig. 2. Y

Fig. 4 represents a cross sectional view taken on the line 3 3 of Fig.3.

Fig, 5 re'presentsfanend elevation of the key actuated lock whichl isassociated with the lock mechanism ot this invention, showing the boltarrangement of said lock.

Fig.. 6 represents a fragmentary sectional View of a modified form oflock. Y

The embodiment ot the invent-ion shown in the `accompanying drawing isapplied to a door shown at A, in which is formed a socket B, opening attheedge of the door for reception of the lock barrel or casing l. Thedoor is also provided with a transverse opening" C, opening on bothsides of the door to provide for the incorporation with the lockmechanism ofV an operating means. The opening C is provided with anenlargement D adapted to contain another partof the lock mechanism,which enlargement opens on the outer side of the d-oor. i' i The barrelor casing lof the lock mechanism is provided with an attaching'flange 2atits outer end, which is lcountersunk in the f edge of the door andheld with the usual fastenings. Slida-bly mounted within the barrel is abolt 3 ot' the usual construction, having a springe surrounding it andarranged to normally hold the bolt projected outwardly yfrom the door.This' bolt`is slidably supportedin a circular disk 5 disposed betweenthe ends of the casing. The disk carriesparallel integral arms 6 whichexten'dtowards the inner end of the casing and are provided with screw,threaded openings 7 adapted to receive screws Sinserted through thebarrel, in order to hold the disk 5 in position. The inner end ofthe'bolt 3 is screwed into Vone en d of a rectangular frame 9 which hasa working fitin the casing orbarrel 1 and is provided with a circularintegral head1() adapted to have a working 't and to slide within thebarrel 1. The arms 6 are provided at 4their outer ends with lateralextensions 11 which lie in superposed parallel relation to the inner endof the longitudinal frame 9. Pivotally mounted on theextensionsll ared-ogs l2, certain ends of which are engaged with the inner face of thehead 10, whereas the other ends are disposed to be engaged by operatingmembers which will be later more fully described. These dogs rest uponthe frame, being engaged with said frame and the lateral extensions. fTheir arrangement is such that when theyV are rocked, the head 10 isengaged and pushed rearward or inward causing the frame to be movedcorrespondingly and the bolt 3 to be withdrawn or, in other words, drawninto the barrel so as to unlock or unlateh the door as the case may he.The ahove described holt operating means is simple as to eonstruetion,compact, durable and reliable in its operation.

In the present. instance the means for operating' this mechanismcomprises operating' levers 18 and 11i mounted on opposite sides of thedoor. The leve are pivoted as at 15 in hemispherical depremions 1Gprovided in lock` plates or roses 1T and iti mounted on the door. Thesedepressions are provided with openings 19 tlni'oueh which the inner ends2O oi the operatine` levers extend tor co* operation with the latchmerhauism Within the barrel. lhe innerends oit the levers are extended`through openings 2l provided in `opposite sides ot' the barrel oreasing' l and engage the dogs 'i2 in such manner that on. pushing ot'the lever 13 towards the door`r the dog' l2 engaging; the inner end ofsaid lever will be rocked and withdraw the holt, and on pulling' outwardof the lever 14:. the inner end thereot Will engage the other dog` 12 soas to likewise withdraw the holt. line `to this arrangement. assumingthat the door opens inward and the lever 153 is outside ot the door,` toopen the door in pushing;- ou the lever 13, the latch will he withdrawn,thus making' .'l'or an easier and quicker operation of openingr thedoor. By `grasping' and pulling on the lever lei, as in opening1 thedoor `from inside, such movement ort the lever likewise withdraws theholt.

As a locking means there is provided a pin Q2 extending through anopening 2S in the inner plate 14 and provided With a head 2i on itsouter end. This pin formed *ith screw threads Q5 so that ou turning;thereof inta eloekwise direction. it will he advanced into a position toextend through an apen tured ear 26 dependingr 'from the portion Q0 of"the operatingr lever 13. Then the pin is .in this positionothe lever 13cannot he moved and the door cannot he unlatehed from the outside hut issubject to ordinary operation through the lever 14 on the inside. Thedoor is ln'ovided with a l'roove 27 Complementary to the opening C 'forthe reception of the pin 2Q.

I provide a key actuated locking' means which is mounted in theenlargement D ot the opening; C and comprises a cylindrical key actuatedleek, generally designated 28. which is screwed into a screw threadedopening Q9 in the upper end of the rose l?. On turningl the kev shoxvnat 80. in this lool;` a slidingf holt 3l provided at the rear end of thelook is moved downward and engages the upper side oi the end 2t) et thelever 1l,` depressing said end. so that the dog' 1 2 cooperatingrtherewith vrill he rocked and Will move the trame 9 and Withdraw theholt 3. On removal ot the keyY 30, the leek 29 turns as is Well knowmand moves the holt 31 to a position clear ot the end 20 ot the lever1li, said lever being pivoted that it will gravitate into normalposition. This is likewise true oi' the lever 13 as regards its returnto normal position. Thus.` it will he seen that on turning the pin 22 sothat it will engage the apertured ear Q6 and lock the lever 13 on theoutside ot the door against operation, to open the door itl is necessaryto insert the proper key in the lock .28 and operate said lock to causethe holt `thereoic to engage and operate the lever ifi so that the lockholt 3 will he Withdrawn. The romhined latch and lock oiE this`invention is much more simple as to constria-.tionn compaet and lessexpensive than the ordinary type ol door lock in `general use and thatdue to the arrangement ot the operatingr leversand their associatedelements, the look may he open ated in a much more etiieaeious mannerthan the ordinary knoh and spindle operateddoor loek. A furtheradvantage ijs that the loek olf' this invention may he installed `.niuehmore cheaply and easily1 than the ordinary lock.

In Fiji. 6 the loek shown is ot the same Construction an the look shownin the other liejures except 'for an additional locking1 device whiehmakes the lock as a whole partic ularlv suited tor hath roomandotherdoors f which are locked on the inside. The additional locking' meanscomprises an angular memher 35 tixed to the inner lever 14g andextending,T through the openiim` 19 downvardlxr' towards the lockingrpin 36 which pin is ofthe sliding' type instead of the sereiv type shownin the other 'torni oit the invetttion. i The, member has a slot 537 atits lower end in which the pin 36 isslidahle and said member is adaptedto engage an enlargement 38 on the pin to cause tlie pin to. move onmovement ot the lever 1.4i.

Assuming;l that `this iorm oi the leek applied to a hath room door, tolook the door from the inside the pin Elli is pushed inward to lock theoutside lever i against operation and therein; lock the door on theoutside. Then the door opened .from the inside the operator in pullingon the lever 14 to` open the door, rocks said leverand auses the member35 to move inward against the enlargement 3S on the pin htherehy movingthe pin from locking,V position and releasingr the lever 12?. Inthis Waythe aet ot opening' the door insures the unlocking of the lever 13 onthe outside of the door, thus making it impossible `to open" the doorWithout preparing' the lock tor actuation troni the outside through thelever` I claim: i

l. A lock for doors or other Closures comprisiimv a locking' holtadapted to he mounted on the door or closure, spring means normallyholding the bolt projected` levers,

means pivotally mounting the levers intermediate of their ends on a dooror closure, operating means which 1s engaged by the inner ends of thelevers which operates onA ing said bolt extended, levers, means :tor

pivotally mounting the levers on opposite sides of the door with theinner ends of the levers disposed adjacent to said bolt, means engagedby and operated on movement of the levers for withdrawing said bolt,which means operates on movement of either lever, said levers andoperating means being arranged whereby when one lever is grasped to pullthe door open, said lever is rocked and causes operation of saidoperating means and when the other lever is pushed to push the dooropen, said lever is rocked and causes operation of said operating meansand means for locking against operation the leverwhich is to be disposedon the outside of the door, which means is subject to operation on theinside of the door.

3. A lock for doors or other closures com-y prising av locking boltadapted to be mounted on theI door or closure, spring means normallyholding the bolt projected, levers, means pivotall mounting the leversintermediate of their ends on a door or closure, operating means whichis engaged by inner ends of the levers which operates on rocking saidlevers to withdraw said bolt, said levers and operating mechanism beingarranged so that on pulling one of said levers said operating mechanismis operated and on pushing the other of said levers, said operatingmechanism is operated, means for locking against operation the leverwhich is to be disposed on the outside of the door, which means isoperable from the inside of the door and a key actuated lock mechanismwhich is subject to operation from the outside ot the door only and onoperation of which rocks and operates the lever on the inside of thedoor.

il. The combination with al door, of a bolt associated with the door,spring means normally holding the bolt projected, levers, means forpivotally mounting the levers on opposite sides of the door with theinner ends of the levers disposed adjacent said bolt, operating meansassociated with the Lvers and bolt, which means operates to withdraw thebolt on rockingof eitherlever, said means and levers being arrangedwhereby the lever on one side of the door when grasped and pushed toopen the door, will berocked and cause operation of said operating meansand when the other lever is grasp-ed and pulled to open the door it willbe rocked and cause operation of said operating means, means operablefrom the inside ot' the door for rocking the lever on the outside of thedoor, a key operated lock mounted in the door and means for operativeconnection between the lock and lever on the innerside of the door forlocking for rocking said lever and causing the operating means towithdraw the bolt upon opera. tion of the key actuated lock.

5. .The combination with a door, of a lock barrel mounted within thedoor, al bolt slidable within the barrel, spring means normallyprojecting the bolt out of the. barrel, a. member to which the inner endof said bolt is attached, which member is slidably mounted within saidbarrel, an abutment head on said member, dogs pivotally mounted withinthe barrel having certain ends bearing against said abutment head andlevers pivotally mounted between their ends on the door having certainends projecting into the barrel and engaged with said dogs to cause thelatter to rock on operation of the levers.

6. The combination with a door, of a lock barrel mounted within thedoor, a bolt slidable within the barrel, spring means normallyprojecting the bolt out of the barrel, a member to which the inner endof said bolt is attached, which member is slidably mounted within saidbarrel, an abutment head on said member, dogs pivotally mounted withinthe barrel having certain ends bearing against said abutment head andlevers pivotally mounted between vtheir ends on the door having certainends projecting into the barrel and engaged with said dogs to cause thelatter to rock on operation of the levers, said dogs and levers beingarranged whereby pushing of one lever towards the door iXes theoperation of one of the dogs and pulling of the other lever away fromthe door fixes the operation of the other dog.

7. The combination with a door, of a lock barrel mounted within thedoor, a bolt slidable within the' barrel', spring means normallyprojecting the bolt out of the barrel, a member to which the inner endof said bolt is attached, which member is slidably mounted within saidbarrel, an abutment head on said member, dogs pivotally mounted withinthe barrel having certain ends bearing aga-inst said abutment head,levers pivotally mounted between their ends on the door having certainends projecting into the barrel and engaged with said dogs to cause thelatter lo rock on operation of the levers, u key actuated lool( mountedonhe (loot, zi`bolt`ziefuale l hyl'he look :unl adopted to engage undrock the level' on one. side ol the (looll und inemsopeizible on the`eide ofilieklool' opposite that leontuinngf the loeli for `rocking thelevel' on the outsidey of the door.

8. A lock for doors o1' other elosme comprising n` locking holt :ulnpledlo he ussoeiul'ecl with n klom', spring nornmlly hohlingsuiclbollextended, levers, means for plv otnlly mounting? he levers on oppositesides of `the door'wth Certain ends 0l: the levers disposed :uljaeentiloSuid boli', means engaeedhy and operated on movement of' the levels forwithdrawing said holt, `which means operates on Inoveinei'lt of eitherlevel',

seiicl levers and operating means being' zn'- to pull lhewlomopem Suidleverfisll'ocliefl and causes operation ol?` said operating menus :unlwhen The other levell ispushod o push `the door open; Enid level.' isrocked nml causes operation of Suid operating means, `ineens 'loi'locking against operation (he lever which is to be dieposed on `the,Monti Side ol lhe door, wheh menus is Subject lio operation onA theinside of `the doorl :unl niennsvfhieli incident: lo pulling' onthellewei on the inside oli i'he` door :is .is required in order lo openthey (loovznnl on consequent roekinlf;- olE Said level', willeliminatie-lilly unlock the hist nnrneel loekinginieans :md i'e lensethe lever on lhe onlfside of `the door.

ANTON J. l KQPP.

